Curry

>>> curry_sum(1)(2)(3).ret()
6

>>> curry_sum(1)(4)(5)(10).ret()
20

Why?

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡴⠒⠋⣩⠿⢿⣏⠻⠓⠲⣤⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⠞⠁⠀⠀⠾⢁⣴⠿⣿⠿⣞⣷⡍⢹⣽⣳⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡼⠁⠀⠀⠀⠀⠀⠉⠀⠀⠹⣆⠈⠉⠀⠘⠛⠙⣿⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡾⠁⠀⠀⠀⠀⠀⠀⣠⠖⠛⣳⣿⠀⠀⠀⠀⠀⠀⠹⣷⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⠃⠀⠀⠀⠀⠀⠀⠀⠻⠤⠼⢿⣿⠀⠀⠀⢀⣶⠛⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡟⠀⠀⠀⠀⢀⡀⠀⠀⠀⠐⠒⠋⡁⠀⠀⠀⠀⢿⣟⠻⠟⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⡇⠀⠀⠀⠀⠀⠛⠀⠀⠀⠀⠀⡼⠃⠀⠀⠀⠀⠀⣿⠙⠀⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⣁⡴⠚⠙⠉⠙⣦⡾⠀⢰⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣧⠀⠀⠀⠀⠀⠀⢀⠀⢸⡟⠁⠀⠀⠘⡿⠒⠛⡇⠀⡼⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⢧⡀⠀⠀⠀⠀⠘⢦⣈⠀⠀⠀⠀⠀⠀⢀⠀⣇⢰⠃⣠⡴⠒⠒⢶⠶⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡤⠶⢶⣟⠷⣤⣀⠀⣀⡀⠀⠉⠁⠀⠀⠀⠀⠈⣇⣨⣿⠞⠁⠀⠀⣄⢸⠀⣸⣧⣄⡀⠀⠀⠀⢀⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣰⠋⠀⠀⠀⠈⠳⡌⠙⠳⣤⡙⠦⣄⠀⠠⢤⣀⣀⡴⢿⣿⠛⢳⡀⠀⠀⣿⣾⢸⠏⠀⠀⠙⠲⢶⣏⣉⠉⠉⠙⢦⡤⠤⠞⠋⠉⠙⢲⡄⠀
⠀⠀⠀⢀⣀⣠⣄⣀⠀⠀⠀⠀⠀⢰⠇⠀⠀⠀⠀⠀⠀⠘⣆⠀⠻⣟⠲⣬⣙⠦⠀⠀⠀⢠⠏⡿⣆⠈⣧⠀⠀⢸⣿⡸⡆⠀⠀⠀⠀⠀⠀⠈⠙⠲⠀⠛⣳⡦⠴⣶⣒⠒⠒⠋⠀
⠀⠀⠀⣿⣁⣀⣀⣼⠷⣦⣴⡞⠉⠙⢦⡀⠀⠀⠀⠀⠀⠀⠘⣆⠀⠘⢧⡈⠛⢟⡓⠒⠦⠤⣤⡧⢸⡄⠘⠂⠀⠀⢻⡇⢿⠰⢦⣀⠀⠘⠻⣍⣓⣶⣶⣿⣛⠲⠶⠤⢬⣙⡳⣄⠀
⠀⠀⢀⡤⠞⣉⣡⠴⣶⢧⣀⠙⠷⡞⠉⠉⠉⠉⠉⢳⡄⠀⠀⠸⡄⠀⠀⠹⣆⠀⠙⠲⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀⠀⢻⣼⡀⠀⠉⢷⣶⣤⣤⣅⣀⣀⣀⣉⣙⣿⠶⢤⡈⠉⠻⣆
⠀⣴⡿⠖⣻⠵⣶⡾⠿⠤⠼⠟⠓⠳⢤⡀⠀⠀⠀⠀⡇⠀⠀⠀⢳⣤⠀⠀⠈⠳⣦⡀⠀⠀⠀⠀⠐⠟⠀⠀⠀⠀⠀⠀⢻⡇⠀⠀⠀⠸⠹⣷⡀⠀⠀⠀⠉⠙⠛⠒⠚⠋⠉⠙⠛
⣼⣋⣀⣼⣧⠴⠿⠤⠤⠤⠤⠤⣤⣤⣤⣧⠤⠆⠀⠀⢷⠀⠀⠀⢸⣿⠀⠀⠀⠀⠀⠙⠲⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢿⡀⠀⠀⠀⠀⣿⢳⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠘⡏⠓⠂⠀⠀⠘⣇⠀⠀⢸⡷⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢷⠀⠀⠀⠀⢹⡟⠓⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⢹⠀⠀⠀⠀⠀⠸⡆⠀⢸⠛⠦⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢧⠀⠀⠀⠀⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⡤⢤⣼⡇⠀⠀⠀⠀⠀⢻⣄⡜⠀⠀⠈⠳⢦⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡆⠀⠀⠀⢹⢧⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣧⡇⠀⠀⠀⠀⠀⠈⣿⡇⠀⠀⠀⠀⠀⠈⠓⢤⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⡀⠀⠀⢸⠈⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣀⠀⠀⠀⠀⠀⢀⣀⣀⣀⣀⣀⣀⣀⣀⣼⣧⣀⣀⣀⣀⣀⣀⣽⣷⣄⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣠⣧⣀⣀⣸⣀⣼⣤⣀⣀⣀⣀⣀⣀⣀⢀⣀
⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠉⠉⠉⠙⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠛⠋⠉⠉⠁⠀⠀⠀⠈⠉⠁⠀⠀⠀⠈⠉⠉⠉⠉⠉⠙⣿⣉⣉⣉⣉⣩⣯⣅⣤⣾⣿⣏⣹⣄⣀⣀⣼

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